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Pearl wool and manufacturing process thereof

A production process and technology of pearl cotton, which is applied in the field of packaging materials, can solve the problems of easy breakage, no shock absorption function, and unsatisfactory use effect, and achieves the effect of smooth and delicate surface, white color and good shock absorption effect.

Pending Publication Date: 2022-07-29
严雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing pearl cotton material, because it is light and thin, is easily broken, does not have the function of shock absorption, and the use effect is not ideal

Method used

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  • Pearl wool and manufacturing process thereof
  • Pearl wool and manufacturing process thereof
  • Pearl wool and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A production process of pearl cotton, comprising the following steps:

[0034] 1000kg of raw materials include: 600kg of low-density polyethylene, 150kg of linear low-density polyethylene resin, 0.98kg of talc, 200kg of liquid butane gas, 0.02kg of fluorescent agent and 49kg of mono- and double-glycerol fatty acid esters.

[0035] The liquid butane gas includes 75% n-butane and 15% isobutane by mass fraction.

[0036] Mix low-density polyethylene, linear low-density polyethylene resin, talc powder and fluorescent agent, pour into a foaming machine, stir evenly, heat at 150°C, and heat and melt the mono- and diglycerol fatty acid esters at 80°C , and then inject liquid butane gas and molten single and double glycerol fatty acid esters into the foaming machine under the pressure of 12MPa, mix, extrude, and cool;

[0037] Then, the pearl cotton is pulled by a tractor, cooled by natural air cooling or a hair dryer system, and the cooled and drawn pearl cotton is flattened ...

Embodiment 2

[0042] A production process of pearl cotton, comprising the following steps:

[0043] 1000kg of raw materials include: 690kg of low-density polyethylene, 120kg of linear low-density polyethylene resin, 0.97kg of talc, 139kg of liquid butane gas, 0.03kg of fluorescent agent and 50kg of mono- and double-glycerol fatty acid esters.

[0044] The liquid butane gas includes 85% n-butane and 25% isobutane by mass fraction.

[0045] Mix low-density polyethylene, linear low-density polyethylene resin, talc powder and fluorescent agent, pour it into a foaming machine, stir evenly, heat at 170 °C, and heat and melt the mono- and double-glycerol fatty acid esters at 120 °C , and then inject liquid butane gas and molten single and double glycerol fatty acid esters into the foaming machine under the pressure of 15MPa, mix, extrude, and cool;

[0046] Then, the pearl cotton is pulled by a tractor, cooled by natural air cooling or a hair dryer system, and the cooled and drawn pearl cotton is...

Embodiment 3

[0051] A production process of pearl cotton, comprising the following steps:

[0052] 1000kg of raw materials include: 650kg of low-density polyethylene, 200kg of linear low-density polyethylene resin, 1.4kg of talc, 120kg of liquid butane gas, 0.03kg of fluorescent agent and 28.57kg of mono- and double-glycerol fatty acid esters.

[0053] The liquid butane gas includes 80% n-butane and 20% isobutane by mass fraction.

[0054] Mix low-density polyethylene, linear low-density polyethylene resin, talc powder and fluorescent agent, pour it into a foaming machine, stir evenly, heat at a heating temperature of 155 °C, heat and melt glycerin fatty acid ester at 90 °C, and then Under the pressure of 15MPa, inject liquid butane gas and molten mono-diglycerol fatty acid ester into the foaming machine, mix, extrude and cool;

[0055] Then, the pearl cotton is pulled by a tractor, cooled by natural air cooling or a hair dryer system, and the cooled and drawn pearl cotton is flattened by...

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Abstract

The invention provides pearl wool and a manufacturing process thereof, and relates to the technical field of packaging materials. The pearl wool is prepared from the following components in percentage by mass: 60 to 69 percent of low-density polyethylene, 12 to 21 percent of linear low-density polyethylene resin, 0.05 to 0.14 percent of talcum powder, 12 to 21 percent of liquid butane gas, 0.002 to 0.003 percent of fluorescent agent and 2 to 5 percent of glycerin fatty acid ester. The manufacturing process comprises the following steps: mixing the low-density polyethylene, the linear low-density polyethylene resin, the talcum powder and the fluorescent agent, heating, injecting the liquid butane gas and the glycerin fatty acid ester, mixing, extruding and cooling. The pearl wool is smooth and fine in surface and pure white in color, has a very good damping effect, is mainly used for inner packaging of bananas, apples, watermelons, vegetables and the like, and can remarkably reduce friction in the agricultural product transportation or storage process, guarantee the integrity of agricultural products and improve the practicability of the pearl wool in the agricultural packaging aspect.

Description

Technical field [0001] The present application relates to the technical field of packaging materials, specifically to a kind of pearl cotton and its production process. Background technique [0002] Pearl cotton has a non-cross-linked obturator structure. It is a high-foam polyethylene product extruded from low-density polyethylene (LDPE) as the main raw material. It is also called polyethylene foamed cotton. It is a new type of environmentally friendly packaging and filling material. . It overcomes the shortcomings of ordinary foam rubber such as brittleness, deformation, and poor recovery, and has the advantages of water and moisture resistance, shockproof, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, and strong impact resistance. It also has Very good chemical resistance. Pearl cotton has the characteristics of transparency, chemical inertness, good sealing performance, etc., and is easy to be formed and pr...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08K3/34C08K5/103C08J9/14
CPCC08J9/0061C08J9/0066C08J9/141C08J9/0023C08J2323/06C08J2423/08C08J2203/14
Inventor 严雄
Owner 严雄